France announced an upcoming tender for 3 GW of solar power plants.

Energy Minister Segolene Royal put out a request for project proposals for solar farms, according to a statement on the ministry’s website. It is seeking six projects with 500 MW of capacity apiece.

The solar farms will be built between 2017 and 2020. Winners of the tender will be paid a premium on top of their electricity sales revenue from the wholesale power market by the state. The support mechanism, known as “additional renumeration” was passed in May.

France has set a target to increase capacity from 6.7 GW to 10.2 GW by the end of 2018 and to 20.2 GW by 2023.